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import os
import random
import socket
import struct
import mock
import unittest2
from kafka.common import *
from kafka.conn import *
class ConnTest(unittest2.TestCase):
def setUp(self):
# Mocking socket.create_connection will cause _sock to always be a
# MagicMock()
patcher = mock.patch('socket.create_connection', spec=True)
self.MockCreateConn = patcher.start()
# Also mock socket.sendall() to appear successful
self.MockCreateConn().sendall.return_value = None
self.addCleanup(patcher.stop)
def test_collect_hosts__happy_path(self):
hosts = "localhost:1234,localhost"
results = collect_hosts(hosts)
self.assertEqual(set(results), set([
('localhost', 1234),
('localhost', 9092),
]))
def test_collect_hosts__string_list(self):
hosts = [
'localhost:1234',
'localhost',
]
results = collect_hosts(hosts)
self.assertEqual(set(results), set([
('localhost', 1234),
('localhost', 9092),
]))
def test_collect_hosts__with_spaces(self):
hosts = "localhost:1234, localhost"
results = collect_hosts(hosts)
self.assertEqual(set(results), set([
('localhost', 1234),
('localhost', 9092),
]))
def test_send(self):
fake_config = {
'host': 'localhost',
'port': 9090,
'request_id': 0,
'payload': 'test data'
}
def mock_reinit(obj):
obj._sock = mock.MagicMock()
obj._sock.sendall.return_value = None
obj._dirty = False
with mock.patch.object(KafkaConnection, 'reinit', new=mock_reinit):
conn = KafkaConnection(fake_config['host'], fake_config['port'])
conn.send(fake_config['request_id'], fake_config['payload'])
conn._sock.sendall.assert_called_with(fake_config['payload'])
def test_init_creates_socket_connection(self):
fake_config = {
'host': 'localhost',
'port': 9090,
}
assert socket.create_connection is self.MockCreateConn
conn = KafkaConnection(fake_config['host'], fake_config['port'])
socket.create_connection.assert_called_with((fake_config['host'], fake_config['port']), DEFAULT_SOCKET_TIMEOUT_SECONDS)
def test_init_failure_raises_connection_error(self):
fake_config = {
'host': 'localhost',
'port': 9090,
}
def raise_error(*args):
raise socket.error
with mock.patch.object(socket, 'create_connection', new=raise_error):
with self.assertRaises(ConnectionError):
KafkaConnection(fake_config['host'], fake_config['port'])
def test_send__reconnects_on_dirty_conn(self):
fake_config = {
'host': 'localhost',
'port': 9090,
'request_id': 0,
'payload': 'test data'
}
# Get a connection (with socket mocked)
assert socket.create_connection is self.MockCreateConn
conn = KafkaConnection(fake_config['host'], fake_config['port'])
# Dirty it
try:
conn._raise_connection_error()
except ConnectionError:
pass
# Reset the socket call counts
socket.create_connection.reset_mock()
self.assertEqual(socket.create_connection.call_count, 0)
# Now test that sending attempts to reconnect
conn.send(fake_config['request_id'], fake_config['payload'])
self.assertEqual(socket.create_connection.call_count, 1)
# A second way to dirty it...
conn.close()
# Reset the socket call counts
socket.create_connection.reset_mock()
self.assertEqual(socket.create_connection.call_count, 0)
# Now test that sending attempts to reconnect
conn.send(fake_config['request_id'], fake_config['payload'])
self.assertEqual(socket.create_connection.call_count, 1)
@unittest2.skip("Not Implemented")
def test_send__failure_sets_dirty_connection(self):
pass
@unittest2.skip("Not Implemented")
def test_recv(self):
pass
@unittest2.skip("Not Implemented")
def test_recv__reconnects_on_dirty_conn(self):
pass
@unittest2.skip("Not Implemented")
def test_recv__failure_sets_dirty_connection(self):
pass
@unittest2.skip("Not Implemented")
def test_recv__doesnt_consume_extra_data_in_stream(self):
pass
@unittest2.skip("Not Implemented")
def test_close__object_is_reusable(self):
pass
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